Finding the Fourth Proportional to 7,918,874.06, 10,928,046.21 and 4,297,202.06
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Solution
The fourth proportional to 7,918,874.06, 10,928,046.21 and 4,297,202.06 is: 5,930,138.85
Step by Step Solution
- Step 1: Write the proportion equation
7,918,874.06 : 10,928,046.21 = 4,297,202.06 : x - Step 2: Convert to fraction form
7,918,874.06/10,928,046.21 = 4,297,202.06/x - Step 3: Cross multiply
7,918,874.06x = 10,928,046.21 × 4,297,202.06 - Step 4: Simplify right side
7,918,874.06x = 46,960,022,712,707.31 - Step 5: Solve for x
x = 46,960,022,712,707.31/7,918,874.06 - Step 6: Final answer
x = 5,930,138.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.